General Description

The MAX1034/MAX1035 multirange, low-power, 14-bit, successive-approximation, analog-to-digital converters (ADCs) operate from a single +5V supply and achieve throughput rates up to 115ksps. A separate digital supply allows digital interfacing with 2.7V to 5.25V systems using the SPI-/QSPI™-/MICROWIRE®-compatible serial interface. Partial power-down mode reduces the supply current to 1.3mA (typ). Full power-down mode reduces the power-supply current to 1µA (typ).

Features

♦ Software-Programmable Input Range for Each Channel

♦ Single-Ended Input Ranges

   0V to +VREF/2, -VREF/2 to 0V, 0V to +VREF,

   -VREF to 0V, ±VREF/4, ±VREF/2, and ±VREF

♦ Differential Input Ranges

   ±VREF/2, ±VREF, and ±2 x VREF

♦ Eight Single-Ended or Four Differential Analog

   Inputs (MAX1034)

♦ Four Single-Ended or Two Differential Analog

   Inputs (MAX1035)

♦ ±6V Overvoltage Tolerant Inputs

♦ Internal or External Reference

♦ 115ksps Maximum Sample Rate

♦ Single +5V Power Supply

♦ 20-/24-Pin TSSOP Package

Applications

   Industrial Control Systems

   Data-Acquisition Systems

   Avionics

   Robotics